Plant Sucrose Transporters from a Biophysical Point of View  

作　　者：Dietmar Geiger 

机构地区：[1]Julius-von-Sachs Institute, Molecular Plant Physiology and Biophysics, University W6rzburg, Julius-von-Sachs Platz 2, D-97082 W~rzburg, Germany

出　　处：《Molecular Plant》2011年第3期395-406,共12页分子植物（英文版）

摘　　要：The majority of higher plants use sucrose as their main mobile carbohydrate. Proton-driven sucrose trans- porters play a crucial role in cell-to-cell and long-distance distribution of sucrose throughout the plant. A very negative plant membrane potential and the ability of sucrose transporters to accumulate sucrose concentrations of more than 1 M indicate that plants evolved transporters with unique structural and functional features. The knowledge about the trans- port mechanism and structural/functional domains of these the current knowledge about the biophysical properties of nano-machines is, however, still fragmentary. In this review, plant sucrose transporters is summarized and discussed.The majority of higher plants use sucrose as their main mobile carbohydrate. Proton-driven sucrose trans- porters play a crucial role in cell-to-cell and long-distance distribution of sucrose throughout the plant. A very negative plant membrane potential and the ability of sucrose transporters to accumulate sucrose concentrations of more than 1 M indicate that plants evolved transporters with unique structural and functional features. The knowledge about the trans- port mechanism and structural/functional domains of these the current knowledge about the biophysical properties of nano-machines is, however, still fragmentary. In this review, plant sucrose transporters is summarized and discussed.

关 键 词：BIOPHYSICS ELECTROPHYSIOLOGY transport processes/kinetics phloem physiology phloem unloading sucrose transport. 

分 类 号：Q949.405[生物学—植物学] S335.29[农业科学—作物遗传育种]